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Mean Well SE-1000-48 Power Supply 1000W 48V 20.8A

economical model medium to high power(450W~1500W)

SKU SE-1000-48

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Select model — 4 in this family

SE-1000-48

SE-450-48 450W 48V Backorder

SE-1000-48 1000W 48V Backorder

SE-1500-48 1500W 48V Backorder

SE-600-48 600W 48V Low stock

Product variants

End of Life, Succeeded by LRS-1200-48

Available to order

Overview

SE-1000-48 is the 48V output model of this series: rated current 20.8A, rated power 998.4W, typical efficiency 89%.

Features

AC input active surge current limiting
AC input range selected by switch
Protections: Short circuit / Overload / Over voltage / Over temperature
Forced air cooling by built-in DC ball bearing fan
High power density 7.3w/inch³
With DC_OK signal output
Built-in remote ON-OFF control
Built-in remote sense function
UL / CUL approved
Low cost
2 years warranty

Specifications

SE-1000-48Specifications from the official datasheet (2026-09-07 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 20.8A
CURRENT RANGE: 0 ~ 20.8A
RATED POWER: 998.4W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE ADJ. RANGE: 43 ~ 56V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1500ms, 50ms/230VAC 1500ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.): 20ms/230VAC 15ms/115VAC at full load

INPUT

VOLTAGE RANGE: 90 ~ 132VAC / 180 ~ 264VAC selected by TB2 254 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 89%
AC CURRENT (Typ.): 17.5A/115VAC 10A/230VAC
INRUSH CURRENT (Typ.): 35A/115VAC 55A/230VAC
LEAKAGE CURRENT: <2.5mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 125% rated output power Protection type : Shut down o/p voltage, re-power on to recover
OVER VOLTAGE: 57.6 ~ 67.2V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

DC_OK SIGNAL: PSU turn on:3.3V ~ 5.6V PUS turn off:0 ~ 1V
REMOTE CONTROL: RC+/RC-: 0 ~ 0.8V power on; 4 ~ 10V power off

ENVIRONMENT

WORKING TEMP.: -20 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.05%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS: UL62368-1, BSMI CNS15598-1, EAC TP TC 004 approved; Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE: I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/ EN55032 (CISPR32),CNS15936 Class A
Radiated BS EN/ EN55032 (CISPR32),CNS15936 Class A
Harmonic Current BS EN/ EN61000-3-2
Voltage Flicker BS EN/ EN61000-3-3
EMC IMMUNITY: BS EN/ EN55035, BS EN/ EN61000-6-2

Parameter Standard Test Level

ESD BS EN/ EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/ EN61000-4-3 Level 3
EFT / Burst BS EN/ EN61000-4-4 Level 3
Surge BS EN/ EN61000-6-2 1KV/Line-Line 2KV/Line-Earth
Conducted BS EN/ EN61000-4-6 Level 3
Magnetic Field BS EN/ EN61000-4-8 Level 4
Voltage Dips and Interruptions BS EN/ EN61000-4-11 >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/ EN55032 (CISPR32),CNS15936	Class A
Radiated	BS EN/ EN55032 (CISPR32),CNS15936	Class A
Harmonic Current	BS EN/ EN61000-3-2
Voltage Flicker	BS EN/ EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/ EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/ EN61000-4-3	Level 3
EFT / Burst	BS EN/ EN61000-4-4	Level 3
Surge	BS EN/ EN61000-6-2	1KV/Line-Line 2KV/Line-Earth
Conducted	BS EN/ EN61000-4-6	Level 3
Magnetic Field	BS EN/ EN61000-4-8	Level 4
Voltage Dips and Interruptions	BS EN/ EN61000-4-11	>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

OTHERS

MTBF: 1273.6K hrs min. Telcordia SR-332 (Bellcore) ; 251.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 278*127*63.5mm (L*W*H)
PACKING: 2.5Kg; 6pcs/16Kg/1.38CUFT

Test conditions and notes7

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 720mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
5. By using UVP circuit, PSU will not turn on direct by in AC continue ON/OFF condition within 5 sec.
6. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
7. This power supply does not meet the harmonic current requirements outlined by EN61000-3-2. Please do not use this power supply under the following conditions: a) the end-devices is used within the European Union, and b) the end-devices is connected to public mains supply with 220Vac or greater rated nominal voltage, and c) the power supply is: - installed in end-devices with average or continuous input power greater than 75W, or - belong to part of a lighting system Exception: Power supplies used within the following end-devices do not need to fulfill EN61000-3-2 a) professional equipment with a total rated input power greater than 1000W; b) symmetrically controlled heating elements with a rated power less than or equal to 200W

Technical drawings

SE-1000-48 Mechanical Specification — Mechanical Specification

SE-1000-48 Block Diagram — Block Diagram

SE-1000-48 Derating Curve — Derating Curve

Downloads

Certificates1

UL Certificate (SE-1000)(EN) PDF Download

Test reports1

Test Report (SE-1000-48)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SE-1000-48 for 48V telecom or network equipment?

Yes, it is a constant-voltage 48V power supply, which matches 48V DC systems. It can support telecom or network equipment when the total load stays within 20.8A and 998.4W.

Is the SE-1000-48 a fit for 48V industrial automation hardware?

It can fit 48V automation hardware that requires a regulated constant-voltage output. The available output is 48V with up to 20.8A, so the full system load should remain within 998.4W.

Can this model power a 48V DC bus for embedded or control equipment?

This supply is designed for constant-voltage 48V applications and can support a centralized 48V DC load. For embedded or control equipment sharing that bus, the total demand must stay at or below 20.8A and 998.4W.

What are the differences between the SE-1000-48 and the other SE-1000 versions?

The SE-1000 family includes SE-1000-5 at 5V, 150A, 750W; SE-1000-9 at 9V, 100A, 900W; SE-1000-12 at 12V, 83.3A, 999.6W; SE-1000-15 at 15V, 66.7A, 1000.5W; SE-1000-24 at 24V, 41.7A, 1000.8W; and SE-1000-48 at 48V, 20.8A, 998.4W. The choice between them is mainly based on required output voltage, with current capacity changing accordingly.

Is the SE-1000-48 rated for outdoor use?

The listed environmental spec is an operating temperature range of -20°C to +60°C. An IP rating is not provided here, so outdoor suitability is not established by the supplied specs.

Payment & Security

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Model	Power	Voltage	Current
Mean Well SE-1000-24 Power Supply 1000W 24V 41.7A	1000.8W	24V	41.7A	View
Mean Well SE-1000-9 Power Supply 900W 9V 100A	900W	9V	100A	View
Mean Well SE-1000-5 Power Supply 750W 5V 150A	750W	5V	150A	View
Mean Well SE-1000-15 Power Supply 1000W 15V 66.7A	1000.5W	15V	66.7A	View
Mean Well SE-1000-12 Power Supply 1000W 12V 83.3A	999.6W	12V	83.3A	View

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Mean Well SE-1000-48 Power Supply 1000W 48V 20.8A

Select model — 4 in this family

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

FUNCTION

ENVIRONMENT

SAFETY & EMC (Note 4)

OTHERS

Technical drawings

Downloads

Certificates1

Test reports1

Catalogues1

FAQ

Payment & Security

Other SE-1000 Models

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Mean Well SE-1000-48 Power Supply 1000W 48V 20.8A

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